[ ] Commit message starts with [Fix #issue-number] (if the related issue exists).
[x] Feature branch is up-to-date with master (if not - rebase it).
[x] Squashed related commits together.
[ ] Added tests.
[x] Ran bundle exec rake default. It executes all tests and runs RuboCop on its own code.
[ ] Added an entry (file) to the changelog folder named {change_type}_{change_description}.md if the new code introduces user-observable changes. See changelog entry format for details.
This PR makes RuboCop Performance require RuboCop 1.30+ to fix some errors: https://github.com/rubocop/rubocop-performance/actions/runs/6966652446/job/18957154150
It introduces CI for the oldest RuboCop version still supported, implementing a workflow for regression testing that is similar to the one found a https://github.com/rubocop/rubocop-rails/commit/c9acb7a.
Before submitting the PR make sure the following are checked:
[Fix #issue-number](if the related issue exists).master(if not - rebase it).bundle exec rake default. It executes all tests and runs RuboCop on its own code.{change_type}_{change_description}.mdif the new code introduces user-observable changes. See changelog entry format for details.